TWI230298B - Method for eliminating bright defect in liquid crystal display and structure thereof - Google Patents
Method for eliminating bright defect in liquid crystal display and structure thereof Download PDFInfo
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- TWI230298B TWI230298B TW91112875A TW91112875A TWI230298B TW I230298 B TWI230298 B TW I230298B TW 91112875 A TW91112875 A TW 91112875A TW 91112875 A TW91112875 A TW 91112875A TW I230298 B TWI230298 B TW I230298B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 58
- 230000007547 defect Effects 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000000758 substrate Substances 0.000 claims abstract description 91
- 239000010409 thin film Substances 0.000 claims abstract description 84
- 239000003990 capacitor Substances 0.000 claims abstract description 18
- 239000010410 layer Substances 0.000 claims description 28
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims 2
- 229910052769 Ytterbium Inorganic materials 0.000 claims 1
- 230000003796 beauty Effects 0.000 claims 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 claims 1
- WABPQHHGFIMREM-BKFZFHPZSA-N lead-212 Chemical compound [212Pb] WABPQHHGFIMREM-BKFZFHPZSA-N 0.000 description 7
- 230000008439 repair process Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 239000013078 crystal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910021417 amorphous silicon Inorganic materials 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- -1 counter electrode Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-O hydridodioxygen(1+) Chemical compound [OH+]=O MYMOFIZGZYHOMD-UHFFFAOYSA-O 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
1230298 五、發明說明（1) 本發明是有關於一種消除液晶顯示器之亮點缺陷的方 法及其結構’且特別是有關於消除薄膜電晶體液晶顯示器 (Thin Film Transistor-Liquid Crystal Display ， T F T - L C D)之亮點缺陷的方法及其結構。 薄膜電晶體液晶顯示器主要由一薄膜電晶體陣列基 板、一彩色濾光陣列基板和一液晶層所構成，其中薄膜電 晶體陣列基板是由多個以陣列排列之薄膜電晶體，以及與 每一薄膜電晶體對應配置之一畫素電極（p i χ e 1 Electrode)所組成。而上述之薄膜電晶體係包括一閘極、1230298 V. Description of the invention (1) The present invention relates to a method and a structure for eliminating bright spot defects of a liquid crystal display, and particularly to a thin film transistor-liquid crystal display (TFT-LCD). The method and structure of bright spot defects. The thin film transistor liquid crystal display is mainly composed of a thin film transistor array substrate, a color filter array substrate and a liquid crystal layer. The thin film transistor array substrate is composed of a plurality of thin film transistors arranged in an array, and is connected with each thin film. The transistor is configured with one pixel electrode (pi χ e 1 Electrode). The above thin film transistor system includes a gate,
—通道層、一源極與一汲極，薄膜電晶體係用來作為液曰 顯示單元的開關元件。 曰曰 薄膜電晶 類似，都是具 通常薄膜電晶 非晶矽薄膜電 晶體與畫素電 器，用來作為 通常一液 一彩色滤光陣 色濾光陣列基 基板上包括有 膜電晶體與一 有一對向電極 結構。 體元件的 有三個端 體元件有 晶體屬於 極的過程 電荷寫入 晶顯示器 列基板以 板之間之 複數個畫 晝素電極 ，其係對 操作原理與傳統的半導體M〇S元件 子（閘極、源極以及汲極）的元件， 非晶石夕與多晶矽材質兩類，而其4 較為成熟之技術。而在製作薄膜, 中’通常會同時製作畫素儲存電笔 Ο-Channel layer, a source and a drain, the thin film transistor system is used as the switching element of the liquid crystal display unit. The thin film transistor is similar to the ordinary thin film transistor, which is an amorphous silicon thin film transistor and a pixel electric device. It is generally used as a one-liquid-color filter array and a color filter array base substrate. There is a pair of opposing electrode structures. There are three end elements of the body element. There is a process in which the crystal belongs to the pole. The charge is written into the crystal display column. The substrate is drawn with a plurality of electrodes between the plates. It is based on the operating principle and the traditional semiconductor MOS device (gate , Source, and drain) components, including amorphous and polycrystalline silicon, and its 4 more mature technologies. In the production of thin films, a pixel storage pen is usually produced at the same time.
係包括有一薄膜電晶體陣列基板、 及配置於薄膜電晶體陣列基板與逢 一液晶層。其中在薄膜電晶體陣歹 素結構，且每一晝素結構包括一海 。在彩色濾光陣列基板上包括配】 應於薄膜電晶體陣列基板上之畫3The system includes a thin film transistor array substrate, and a thin film transistor array substrate and a liquid crystal layer. Wherein the thin film transistor array has a pixel structure, and each day element structure includes a sea. Include color matching on the color filter array substrate] Drawings that should be on the thin film transistor array substrate 3
1230298 五、發明說明（2) 第1圖所示，其繪示為習知一薄膜電晶體液晶顯示器 之剖面示意圖，·第2圖所示，其繪示為習知一薄膜電晶體 液晶顯示器中之一畫素結構之上視圖。 請參照第1圖與第2圖，習知薄膜電晶體液晶顯示器包 括一薄膜電晶體陣列基板1〇〇、一彩色濾光陣列基板12〇與 配置於薄膜電晶體陣列基板〗〇 〇與彩色濾光陣列基板〗2 〇之 間之一液晶層1 2 4。另外，在薄膜電晶體陣列基板〗〇 〇與彩 色遽光陣列基板1 2 0之間的邊緣處係配置有一絕緣框膠 126，用以支撐兩基板。 / 如圖2所示，在薄膜電晶體陣列基板1〇〇上係配置有複 j，晝素結構，而其中一畫素結構係由一掃瞄配線丨〇2與 ^貧料配線1〇4所控制，此畫素結構包括有一薄膜電晶體 摩簿膜一/Λ電極108與一導線112。其中畫素電極1〇8係對 二：電：體106配置，且薄膜電晶體1〇6之一源極1〇5係 以己ΐ104電性連接，薄膜電晶體106之-閉極1 〇3係 ”知目田配線丨〇 2電性連接， 係與晝素電極1〇8電性；接4膜電曰曰體106之-沒極107 "2，另：，在薄膜電晶體陣列基板1〇〇上更配置有一導線 方之查、夸/置在畫素電極108之下方。而導線112與其上 係作ί儲存ΐ1::之構下V儲存電容110。其中，導線112 之間更=括配置i i極，而在導線112與畫素電極108 為與掃二同λ介電層（未繪示）。而導線112係 _ 、 冋守形成的。而位於上電極與下電極 7789twf.ptd 第6頁 1230298 五、發明說明（3) 之間之電容介電層係為形成薄膜電晶體丨〇 6之閘絕緣層與 保護層時，所同時形成的一部份。 而在彩色濾光陣列基板上1 2 0係包括配置有一彩色濾 光陣列層與配置於彩色濾光陣列基板上之一對向電極 I 2 2。其中’彩色濾光陣列基板丨2 〇上之對向電極丨2 2與薄 膜電晶體陣列基板1 〇 〇上之導線丨丨2，皆連接至一共用電極 上，且其偏壓皆為相同電壓（ycom)。而彩色濾光陣列基板 120上之對向電極丨22與薄膜電晶體陣列基板1〇〇上之導線 II 2之間係透過一導電銀膠丨28而彼此電性連接。 對於習知之薄膜電晶體液晶顯示器而言，當導線丨】2 與畫素電極108之間的電容介電層品質不佳時，導線112盥 晝素電極1〇8之間便可能發生短路而導致亮點缺陷。缺/、 而，對於此亮點缺陷要對其進行修補之動作並不容易，甚 至在可接文之壳點缺陷程度範圍内就不進行修補之動作。 ^外甘由於習知對於液晶顯示器之亮點缺陷之消除並不容 甚至不修補亮點缺陷，因此對於在N〇rmally White液 曰曰顯不器，其亮點缺陷將會更加明顯。 及、、肖ί曰^叙明的目的就是在提供一種液晶顯示器結構 顯：器之党點缺陷的方法，在發生有亮點缺陷 寸 了自動將其修補成暗點。 本發明的另一目的是提供一德、波曰贴一 液曰_ - ¥ ^ , 扠仏種液日日顯不器結構及消除1230298 V. Description of the invention (2) Figure 1 shows a cross-sectional schematic diagram of a conventional thin film liquid crystal display, and Figure 2 shows a conventional thin film transistor liquid crystal display. Top view of one pixel structure. Please refer to FIG. 1 and FIG. 2. The conventional thin film transistor liquid crystal display includes a thin film transistor array substrate 100, a color filter array substrate 120, and a thin film transistor array substrate disposed thereon and a color filter. Light array substrate: one of the liquid crystal layers 1 2 4. In addition, an insulating frame adhesive 126 is disposed at an edge between the thin film transistor array substrate and the color light array substrate 120, to support the two substrates. / As shown in FIG. 2, a thin film transistor array substrate 100 is provided with a complex structure, and a pixel structure is formed by a scanning wiring 〇 02 and ^ lean wiring 104. Control, the pixel structure includes a thin film transistor film / a electrode 108 and a wire 112. Among them, the pixel electrode 108 is arranged in a pair of two: electricity: body 106, and one of the thin-film transistors 106 is electrically connected to hexahedron 104, and the thin-film transistor 106 is closed-electrode 103.系 "知 目 田 配线 丨 〇2 is electrically connected, and it is electrically connected to the day element electrode 108; it is connected to a 4-film electric body 106-Waiji 107 " 2, and also: on a thin film transistor array substrate There is also a lead wire on the 100, which is placed under the pixel electrode 108. The lead wire 112 and the top of the lead wire are stored as ί storage: 1 :: V storage capacitor 110. Among them, the lead wire 112 is more = Includes the configuration of the ii pole, and the lead 112 and the pixel electrode 108 are the same λ dielectric layer (not shown) as the sweep. The lead 112 is formed by _ and 冋. It is located at the upper electrode and the lower electrode 7789twf. ptd page 6 1230298 V. Description of the invention (3) The capacitor dielectric layer is a part formed at the same time as the gate insulating layer and the protective layer of the thin film transistor 〇06. In the color filter The array substrate 1 2 0 includes a color filter array layer and an opposite electrode I 2 2 disposed on the color filter array substrate. Among them, The counter electrode on the color filter array substrate 丨 2 〇 2 2 and the wire 丨 2 on the thin film transistor array substrate 丨 2 are connected to a common electrode, and the bias voltages are the same voltage (ycom ). The opposite electrode 22 on the color filter array substrate 120 and the wire II 2 on the thin film transistor array substrate 100 are electrically connected to each other through a conductive silver paste 28. For the conventional thin film In the case of transistor liquid crystal displays, when the quality of the capacitive dielectric layer between the lead wire 2 and the pixel electrode 108 is not good, a short circuit may occur between the lead wire 112 and the pixel electrode 108, resulting in a bright spot defect. / 、 However, it is not easy to repair this bright spot defect, even if it is within the range of the shell point defect that can be connected to the text. ^ We are not familiar with the bright spot defect of liquid crystal displays. Elimination does not tolerate or even repair bright spot defects, so the bright spot defect will be more noticeable for the display device in Normally White. And, the purpose of Xiao Ming is to provide a liquid crystal display. The method of constructing the display: the method of the point defect of the device, automatically repairs the dark point when there is a defect of the bright point. Another object of the present invention is to provide a virtue, a wave, a paste, and a liquid _-¥ ^, Structure and elimination of seed liquid display device
Whl·十。、六θ g J力次以大幅減少Normally h 11 e液日日顯示器之亮點缺陷。 本發明提出一種消除液晶_ 哭 于/仗日日顯不裔之焭點缺陷的方法，Whl · ten. 6. Six θ g J times to greatly reduce the bright spot defects of the Normally h 11 e liquid day and day display. The present invention proposes a method for eliminating liquid crystal defects.
7789twf.ptd 第7頁 1230298 五、發明說明（4) 首先提供一液晶顯示器， 陣列基板、一彩色滤光陣 基板與彩色濾光陣列基板 陣列基板包括配置有一對 包括數個畫素結構，每一 晝素電極，在畫素電極之 線上方之畫素電極會形成 薄膜電晶體之閘極所同時 源極/沒極所同時形成的。 用電極上，且其偏壓係為 接至另一偏壓係為第二電 壓係不相等，較佳者| Vs 特。 此液晶顯示器包括一薄膜電晶體 列基板與配置於薄膜電晶體陣列 之間之一液晶層。其中彩色濾光 向電極。薄膜電晶體陣列基板上 晝素結構包括一薄膜電晶體與一 下方更配置有一導線，導線與導 一儲存電容。其中導線例如為與 形成的，或者是與薄膜電晶體之 ’接著’將對向電極連接至一共 第一電壓（Vcom)。並且將導線連 壓（Vs)，其中第一電壓與第二電 — Vcom | >v，且v至少大於3伏 本發明提出一種液晶顯示器結構，包括一薄膜電晶體 =列基板，其中薄膜電晶體陣列基板上包括複數個晝素結 ，，且每一畫素結構包括一薄膜電晶體與一晝素電極；一 V線配置在溥膜電晶體陣列基板上之晝素電極的下方， $中導線與配置在導線上方之畫素電極係構成一儲存電容 ☆，且，導線係連接至一電源線；一彩色濾光陣列基板， =置在薄膜電晶體陣列基板之上方；一對向電極，配置在 彩色濾光陣列基板上，其中對向電極係連接至一共用電 極’一框膠’配置在薄膜電晶體陣列基板與彩色濾光陣列 基板之周圍’用以支撐薄膜電晶體陣列基板與彩色濾光陣 列基板；以及一液晶層，配置在薄膜電晶體陣列基板、彩 1230298 五、發明說明（5) 色濾、光陣列基板與框膠之間。 線，配置在薄膜電晶體陣列月中更包括一 導線與導線之間並未電性iH;框膠的外圍， 電極之間更包括配置有一導電 在帛一導線 向電極彼此電性連接，其中Π後=使第-導 本發明之消除液晶顯示nc至共用 構，係利用將導線連接 、曰的方法及 有不同電麼，並設定導不同的線路上 伏特，以使亮點缺陷可ΐ動：=之間之髮差為 ,^ 』目勁修補成暗點。 方^之液g顯^結構及、;肖除液I顯示h 的方法，可大幅降低Norma ^為之 缺陷。 y vyil 1 τe履日日顯示器 為讓本發明之__h Λ. +4- L 迷和其他目的、特徵、知值 顯易懂，下文特舉一較 #焱點 細說明如下： &佳““列’並配合所附圖式 圖式之標示說明： 100、20 0 :薄膜電晶體陣列基板 1 0 2、2 0 2 ··掃目苗配線 1 0 4、2 0 4 :資料配線 1 0 6、2 0 6 :薄膜電晶酽 1 0 3、2 0 3 :閘極 & 1 0 5、2 0 5 :源極 107、 207 :沒極 108、 208 ·•晝素電極 第一導 且第一 與對向 線與對 電極。 其結 使其具 至少3 亮點缺 t免點 能更明 ’作詳7789twf.ptd Page 7 1230298 V. Description of the Invention (4) First, a liquid crystal display, an array substrate, a color filter array substrate, and a color filter array substrate are provided. The array substrate includes a pair of pixel structures, each including a plurality of pixel structures. The day electrode, the pixel electrode above the line of the pixel electrode will form both the gate and the source / deposit of the thin film transistor. The electrode is used, and its bias system is connected to another bias system as the second voltage system is not equal, preferably | Vs special. The liquid crystal display includes a thin film transistor array substrate and a liquid crystal layer disposed between the thin film transistor array. The color filter is directed to the electrode. The thin-film transistor array substrate includes a thin-film transistor and a conductive line disposed below, and the conductive line and a storage capacitor. The wires are formed, for example, or with the thin film transistor, and then the counter electrode is connected to a total first voltage (Vcom). And the wires are connected under voltage (Vs), where the first voltage and the second voltage — Vcom | > v, and v is at least greater than 3 volts. The present invention proposes a liquid crystal display structure including a thin film transistor = column substrate, wherein the thin film voltage The crystal array substrate includes a plurality of day element junctions, and each pixel structure includes a thin film transistor and a day element electrode; a V line is arranged below the day element electrode on the diaphragm array substrate, The lead and the pixel electrode arranged above the lead constitute a storage capacitor ☆, and the lead is connected to a power line; a color filter array substrate is placed above the thin film transistor array substrate; a pair of opposed electrodes, It is arranged on the color filter array substrate, wherein the counter electrode system is connected to a common electrode 'a frame adhesive' is arranged around the thin film transistor array substrate and the color filter array substrate 'to support the thin film transistor array substrate and the color A filter array substrate; and a liquid crystal layer disposed between a thin film transistor array substrate, a color 1230298, and a description of the invention (5) a color filter, a light array substrate, and a frame adhesive. The wire is arranged in the thin film transistor array and further includes a wire and the wire is not electrically iH; the periphery of the frame, the electrode further includes a conductive wire arranged between the wire and the electrode to be electrically connected to each other, where Π After = to make the-to eliminate the liquid crystal display nc to the common structure of the present invention, use the method of connecting the wires, the method and the different electricity, and set the volts on different lines to make the bright point defects can be moved: = The difference between them is, ^ 』Men's eyes are patched into dark spots. The method of the liquid g showing the structure and the method of removing the liquid I showing h can greatly reduce the defects of Norma. y vyil 1 τe The day-to-day display is to make the __h Λ. + 4- L fan and other purposes, features, and values of the present invention easy to understand. The following is a detailed description of the following: "Columns" and the description of the diagrams with the attached drawings: 100, 20 0: thin-film transistor array substrate 1 0 2, 2 0 2 ·· Scanning seedling wiring 1 0 4, 2 0 4: Data wiring 1 0 6, 2 0 6: thin film transistor 1 0 3, 2 0 3: gate & 1 0 5, 2 0 5: source 107, 207: pole 108, 208 The first and the opposite lines and the opposite electrodes. The result is that it has at least 3 bright spots and t free spots to make it clearer.
1230298 五、發明說明（6) 儲存電容 212a :導線 彩色濾光陣列基板 對向電極 液晶層 絕緣框膠 導電銀膠 110 ^ 210 112 >212 120 > 220 122 、 112 124 ^ 224 126 ^ 226 128 > 228 實施例 第3圖所示，其繪示為依照本發明一較佳實施例之一 薄膜電晶體液晶顯示器之剖面示意圖；第4圖所示，其繪 示為依照本發明一較佳實施例之一薄膜電晶體液晶顯示器 中之一畫素結構之上視圖。 請參照第3圖與第4圖，一液晶顯示器係包括一薄膜電 晶體陣列基板2 0 0、一彩色濾光陣列基板2 2 0以及配置於薄 膜電晶體陣列基板2 0 0與彩色濾光陣列基板2 2 0之間之一液 晶層224。而且，在薄膜電晶體陣列基板2 0 0與彩色濾光陣 列基板2 2 0之間的邊緣處係配置有一絕緣框膠2 2 6，用以支 撐兩基板。 其中，在薄膜電晶體陣列基板2 0 0上係包括配置有數 條掃瞄配線、數條資料配線與數個畫素結構，其中每一晝 素結構係配置在二相鄰的掃瞄配線與二相鄰的資料配線之 間。而在彩色濾光陣列基板2 2 0上係包括配置有一彩色濾 光陣列層與配置於彩色濾光陣列層上之一對向電極2 2 2， 其中彩色濾光陣列層係由多個R、G、B區域交錯配置而成1230298 V. Description of the invention (6) Storage capacitor 212a: Wire color filter array substrate, counter electrode, liquid crystal layer, insulating frame adhesive, conductive silver adhesive 110 ^ 210 112 > 212 120 > 220 122, 112 124 ^ 224 126 ^ 226 128 > 228 Embodiment FIG. 3 shows a schematic cross-sectional view of a thin film transistor liquid crystal display according to a preferred embodiment of the present invention; FIG. 4 shows a preferred embodiment according to the present invention. A top view of a pixel structure in a thin film transistor liquid crystal display of one embodiment. Please refer to FIG. 3 and FIG. 4. A liquid crystal display system includes a thin film transistor array substrate 2000, a color filter array substrate 220, and a thin film transistor array substrate 200 and a color filter array. A liquid crystal layer 224 between the substrates 2 2 0. In addition, an insulating frame adhesive 2 2 6 is disposed at an edge between the thin film transistor array substrate 200 and the color filter array substrate 2 220 to support the two substrates. Among them, the thin film transistor array substrate 2000 includes a plurality of scanning wirings, a plurality of data wirings, and a plurality of pixel structures. Each of the daytime pixel structures is disposed on two adjacent scanning wirings and two pixel structures. Between adjacent data wiring. The color filter array substrate 2 220 includes a color filter array layer and an opposite electrode 2 2 2 arranged on the color filter array layer. The color filter array layer is composed of a plurality of R, G and B areas are staggered
7789twf.ptd 第10頁 1230298 五、發明說明（7) 的，且R、G、B區域之間則配置有一黑矩陣層，而配置在 彩色濾光陣列基板220上之對向電極222係對應於薄膜電晶 體陣列基板2 0 0之畫素結構。 在薄膜電晶體陣列基板2 0 0上之其中一畫素結構係由 一掃瞄配線202與一資料配線204所控制，且此畫素結構包 括一薄膜電晶體206、一畫素電極208與一導線212。其中 晝素電極208係對應薄膜電晶體20 6配置，其材質例如為氧 化銦錫（ITO)。且薄膜電晶體20 6之一源極20 5係與資料配 線2 04電性連接，薄膜電晶體2〇6之一閘極20 3係與掃瞄配 線202電性連接，而薄膜電晶體206之一汲極207係與晝素 電極2 0 8電性連接。 另外，在薄膜電晶體陣列基板20 0上更配置有一導線 212 ’其係設置在畫素電極2〇8之下方，導線212與其上方 之畫素電極208會形成一儲存電容210。其中，導線212係 作為儲存電容21〇之下電極，導線2 12上方之晝素電極208 係作為儲存電容210之上電極，而在導線212與晝素電極 2 〇 8之間則是配置有一電容介電層（未繪示）。而導線2丨2例 如為與掃瞄配線202所同時形成的，或者是與資料配線204 所同時形成的。而位於導線2 1 2與畫素電極2 〇 8間之電容介 電層之材質例如為氮化矽、氧化矽、五氧化二鉅、二氧化 短或氧化鈦。倘若導線2 1 2係為與掃瞄配線2 〇 2所同時形成 的’則位於導線212與畫素電極2〇8之間之電容介電層係為 形^薄膜電晶體206之閘絕緣層與保護層時所同時形成的 ⑷份。倘若導線2 1 2係為與資料配線2 〇 4所同時形成的’7789twf.ptd Page 10 1230298 V. Description of the invention (7), and a black matrix layer is arranged between the R, G, and B regions, and the counter electrode 222 arranged on the color filter array substrate 220 corresponds to Pixel structure of thin film transistor array substrate 2000. One of the pixel structures on the thin film transistor array substrate 2000 is controlled by a scanning wiring 202 and a data wiring 204, and the pixel structure includes a thin film transistor 206, a pixel electrode 208, and a wire. 212. The day element 208 is configured corresponding to the thin film transistor 20 6, and the material is, for example, indium tin oxide (ITO). And one of the thin film transistor 20 6 is electrically connected to the data wiring 2 04, and one of the thin film transistors 20 is electrically connected to the scanning wiring 202, and the thin film transistor 206 is A drain electrode 207 is electrically connected to the day element electrode 208. In addition, on the thin film transistor array substrate 200, a lead wire 212 'is further disposed below the pixel electrode 208, and the lead wire 212 and the pixel electrode 208 above it form a storage capacitor 210. Among them, the lead 212 is used as the electrode below the storage capacitor 21o, and the day element 208 above the lead 2 12 is used as the electrode above the storage capacitor 210, and a capacitor is arranged between the lead 212 and the day capacitor electrode 08 Dielectric layer (not shown). The lead wires 2 and 2 are formed at the same time as the scanning wiring 202 or the data wiring 204, for example. The material of the capacitor dielectric layer located between the lead 2 12 and the pixel electrode 2008 is, for example, silicon nitride, silicon oxide, pentoxide, short dioxide, or titanium oxide. If the conductive line 2 1 2 is formed at the same time as the scanning wiring 2 02, the capacitor dielectric layer between the conductive line 212 and the pixel electrode 2 08 is a gate insulating layer of the thin film transistor 206 and The moisture content that is formed while protecting the layer. If the wire 2 1 2 is formed at the same time as the data wiring 2 04
1230298 五、發明說明（8) 則位於導線212與畫素電極2〇8之間之電容介電層係為形成 薄膜電晶體2 0 6之保護層時所同時形成的一部份。1230298 V. Description of the invention (8) The capacitor dielectric layer between the lead 212 and the pixel electrode 208 is a part formed at the same time as the protective layer of the thin film transistor 206.
本發明之消除液晶顯示器之亮點缺陷的方法，係利用 將彩色濾光陣列基板220上之對向電極222連接至一共用電 極’其偏屡係為第一電屢（yc〇m)。並且將導線212連接至 另一偏壓係為第二電壓（Vs)，其中該導線212連接至另一 偏壓可利用一電源線加以達成。而第一電壓與第二電壓係 不相等，較佳的是| Vs — Vcom | > V，其中V大於3伏特。 在本貝施例中’彩色濾光陣列基板2 2 〇上之對向電極2 2 2可 ，過一導電銀膠228而連接至薄膜電晶體陣列基板2〇〇上之 弟 $線2 1 2 a ’其中第一導線2 1 2 a係為導線2 1 2延伸至絕 緣框膠22 6以外的一部分，且第一導線212a與導線212之間 並未相連接。 S 由於本發明係利用將薄膜電晶體陣列基板2 〇 〇上之導 線212之偏壓，設定為與彩色濾光陣列基板22〇上之對向電 極222之偏壓之壓差為至少3伏特。因此，當導線212盥畫 素電極208之間因電容介電層品質缺陷而產生短路之現一 夕以道致產生亮點缺陷日夺，由於薄膜電晶體陣列基板上 與晝素電極2〇8導通’使得導線212與畫素電 同，因此’薄膜電晶體陣列基板2°〇上之 =2 Λ 208 )與•色遽★陣列基板220上之對 向電極2 2 2之間之電壓羔，會佶佐m 专社媸μ + 曰使侍對應於有亮點缺陷之書 !:構2之液晶分子，皆呈非扭轉狀態，進而達到亮:點 1230298 五、發明說明（9)The method for eliminating the bright spot defect of the liquid crystal display of the present invention is to connect the counter electrode 222 on the color filter array substrate 220 to a common electrode, and its bias is the first voltage (ycm). And connecting the conducting wire 212 to another bias voltage is a second voltage (Vs), wherein connecting the conducting wire 212 to another bias voltage can be achieved by a power line. The first voltage is not equal to the second voltage, preferably | Vs — Vcom | > V, where V is greater than 3 volts. In this example, the opposite electrode 2 2 2 on the color filter array substrate 2 2 2 may be connected to the thin-film transistor array substrate 2 2 through a conductive silver paste 228. 2 2 2 a 'wherein the first lead 2 1 2 a is a part of the lead 2 1 2 extending beyond the insulating frame rubber 22 6, and the first lead 212 a and the lead 212 are not connected. Since the present invention uses a bias voltage of the conductor 212 on the thin film transistor array substrate 2000, the voltage difference from the bias voltage of the counter electrode 222 on the color filter array substrate 22 is set to at least 3 volts. Therefore, when a short circuit occurs between the lead 212 and the pixel electrode 208 due to the quality defect of the capacitor dielectric layer, a bright spot defect is generated overnight, and the thin film transistor array substrate is electrically connected to the day electrode 208. 'Make the lead 212 and the pixel the same, so' the voltage between the thin film transistor array substrate 2 ° 〇 = 2 Λ 208) and the color electrode ★ the opposite electrode 2 2 2 on the array substrate 220, will佶 佐 m 专 社 媸 μ + The messenger corresponds to the book with bright spot defects !: The liquid crystal molecules of Structure 2 are in a non-twisted state, and then they are bright: Point 1230298 V. Description of the invention (9)
膜雷t ί 2,f除液晶顯示器之亮點缺陷之方法H 品質缺陷而產生短路ί m ΐ:極之間因電容介電層 同之偏壓值，因此，利田道& ^圭I 旦京電極具有相 矛用導線（和旦素電極）與彩色減#陳 列基板上之對向電極間 > 心 ^]之電1差便了將凴點缺陷自動修 ::成暗點，如此不但改善了習知難以修補亮點缺陷之問/ 於達成修補m此外’對於在N〇rmally 液晶顯示器，利用本發明之方法將亮點缺陷修補 :點之後’可消除亮點缺陷之㈣，而大幅減少了亮點缺 綜合以上所述’本發明具有下列優點： 1 ·本發明之液晶顯示器結構及消除液晶顯示器之亮點 缺陷的方法及其結構，係利用將導線連接至與對向電^ *不 同的線路上使其具有不同電壓，並設定導線與對向電極 間之壓差為至少3伏特，以使亮點缺陷可自動修補成暗 點 〇 2 ·本發明之液曰曰顯示器結構及消除液晶顯示器之亮點 缺陷的方法，可大幅降低Normally White液晶顯示哭=: 點缺陷。 的 < 冗 雖然本發明已以一較佳實施例揭露如上，然其並非 ，定本發明，任何熟習此技藝者，在不脫離本發明之 二::範圍内’當可作些許之更動與潤飾，目此本發 ； 邊乾園當視後附之申請專利範圍所界定者為準。 示Membrane t ί 2, f Method for removing bright spot defects of liquid crystal display H Short circuit caused by quality defect m m ΐ: between the poles due to the same bias value of the capacitor dielectric layer, so Li Tiandao & ^ Gui I Dan Jing The electrode has a phase difference between the lead for the spear (and the denier electrode) and the color of the counter electrode on the display substrate > Heart ^] The difference is 1 to automatically repair the point defect: into a dark point, so not only improves It is known that it is difficult to repair bright spot defects / To achieve repair m In addition, for the LCD of the LCD screen, the method of the present invention is used to repair the bright spot defects: after the point can eliminate the bright spot defects, and greatly reduce the bright spot defects To sum up, the present invention has the following advantages: 1. The structure of the liquid crystal display of the present invention and the method and structure for eliminating the defects of the bright point of the liquid crystal display, are made by connecting the wires to a line different from the opposite electric line. Have different voltages, and set the pressure difference between the lead and the counter electrode to be at least 3 volts, so that bright spot defects can be automatically repaired to dark spots. The liquid structure of the invention and the brightness of the liquid crystal display are eliminated. The method of defects can be greatly reduced Normally White liquid crystal display cry =: point defects. ≪ Redundant Although the present invention has been disclosed as above with a preferred embodiment, but it is not, to determine the present invention, anyone skilled in this art will not depart from the scope of the present invention 2 :: when it can be slightly changed and retouched This issue is hereby issued; Bian Qian Yuan shall be subject to the definition in the scope of the attached patent application. Show
1230298 圖式簡單說明 第1圖為習知一薄膜電晶體液晶顯示器之剖面示意 圖， 第2圖為習知一薄膜電晶體液晶顯示器中之一晝素結 構之上視圖； 第3圖為依照本發明一較佳實施例之一薄膜電晶體液 晶顯不裔之剖面不意圖，以及 第4圖為依照本發明一較佳實施例之一薄膜電晶體液 晶顯示器中之一畫素結構之上視圖。1230298 Brief description of the drawings. Figure 1 is a schematic cross-sectional view of a conventional thin-film transistor liquid crystal display. Figure 2 is a top view of a daylight element structure in a conventional thin-film transistor liquid crystal display. Figure 3 is a diagram according to the present invention. A cross section of a thin film transistor liquid crystal display device according to a preferred embodiment is not intended, and FIG. 4 is a top view of a pixel structure in a thin film transistor liquid crystal display device according to a preferred embodiment of the present invention.
7789twf.ptd 第14頁7789twf.ptd Page 14
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| TW91112875A TWI230298B (en) | 2002-06-13 | 2002-06-13 | Method for eliminating bright defect in liquid crystal display and structure thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI401497B (en) * | 2010-08-26 | 2013-07-11 | Au Optronics Corp | Display panel |
| TWI416212B (en) * | 2006-06-15 | 2013-11-21 | Japan Display West Inc | Liquid crystal display panel |
| TWI451389B (en) * | 2007-07-13 | 2014-09-01 | Innolux Corp | Liquid crystal display and method of driving a common voltage |
-
2002
- 2002-06-13 TW TW91112875A patent/TWI230298B/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI416212B (en) * | 2006-06-15 | 2013-11-21 | Japan Display West Inc | Liquid crystal display panel |
| TWI451389B (en) * | 2007-07-13 | 2014-09-01 | Innolux Corp | Liquid crystal display and method of driving a common voltage |
| TWI401497B (en) * | 2010-08-26 | 2013-07-11 | Au Optronics Corp | Display panel |
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